What the 55 mOhm ESR means for your rail
The TPSE107M016R0055: Tantalum capacitors require derating to 50-60% of rated voltage for reliable operation — 16 V rated is safe on any rail up to 9.6 V continuous. On a 12 V rail the derating margin drops to 33%, which exceeds the recommended 50% derating for MnO2 tantalum, so this part is not suitable for 12 V rails.
Temp range and package fit
The -55°C to +125°C operating range covers industrial control cabinets, base-station outdoor enclosures, and under-hood automotive modules (though this part lacks AEC-Q200 qualification explicitly).
Active lifecycle — no end-of-life risk
The TPS series is a mature, high-volume line — supply continuity is stable through authorized and independent distribution.